CN107118409B - A kind of nitrile rubber and preparation method thereof - Google Patents
A kind of nitrile rubber and preparation method thereof Download PDFInfo
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- CN107118409B CN107118409B CN201710470185.6A CN201710470185A CN107118409B CN 107118409 B CN107118409 B CN 107118409B CN 201710470185 A CN201710470185 A CN 201710470185A CN 107118409 B CN107118409 B CN 107118409B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of nitrile rubbers and preparation method thereof, belong to rubber material and preparation method thereof field.The main component of nitrile rubber of the invention is low Mooney nitrile rubber 1052M30, high styrene rubber S6H and oligomer ester 12- I, and preparation step is masterbatch mix and two sections of masterbatch plus sulphur.The characteristic that nitrile rubber of the invention has high rigidity, low mooney viscosity, compression set low, to solve the problems, such as to easily cause sizing material incipient scorch, difficult forming, sizing material to difficultly flow by existing high rigidity sizing material in process of production, the processing such as die cavity is difficult and product qualification rate is low, production efficiency and product qualification rate are substantially increased, production cost is reduced.
Description
Technical field
The invention belongs to rubber material and preparation method thereof technical fields, more specifically to a kind of nitrile rubber material
Material and preparation method thereof.
Background technique
With the fast development of global household electric appliances, during sight has been invested by more and more international well-known household electrical appliances manufacturers
State, this strides into global rubber household electrical appliances components supplying quotient to rubber enterprise and provides good opportunity.Exactly in such background
Under the premise of, patent application enterprise is that international well-known household electrical appliances manufacturer forms a complete production network household electrical appliances shock-absorbing support rubber parts, household electrical appliances manufacture
Quotient is to the requirement of its product quality and its strictly, such as the rubber parts of household electrical appliances shock-absorbing support, not requiring nothing more than ensures shock-absorbing support
The low shake of held stationary, noise are small during the work time for rubber parts, but also require high anti-fade and resistance tocrocking.The damping
Support rubber parts hardness requirement is IRHD 83 ± 3, and high in this way its Mooney viscosity of hardness sizing material is substantially 100 or so.
It is well known that rubber hardness and Mooney viscosity are often a pair of conflicting body, in order to meet production technology performance,
Usually require that sizing material has good mobility, and Mooney viscosity is then the technological parameter for characterizing the characteristic, the Mooney of sizing material is viscous
Degree is lower, then its mobile performance is better, and when sizing material hardness is higher than 80 degree, the contradiction of Mooney viscosity and hardness is more invented
Aobvious, its bigger mobility of Mooney viscosity of the more high then sizing material of the hardness of usual rubber is poorer, easily causes glue in process of production
The defects of material incipient scorch, difficult forming, sizing material difficultly flow into die cavity, therefore production efficiency and the low problem of product qualification rate are brought,
It even causes the phenomenon that can not producing, it is hard that fine grain is added when making high rigidity sizing material in previous people usually in sizing material
Matter carbon black improves its sizing material hardness, hardness requirement it is higher, then the amount that hard (carbon) black is added is bigger, and Mooney viscosity is higher,
The mobility of sizing material is also poorer.
It is retrieved, there is technical staff to be made that some improvement for this problem.(the rubber-plastic type washing machine foot pad glue such as Zhao Guiying
The formula of material designs [J] Jilin Institute of Chemical Technology journal .2014,31 (1): 66-69.) being with high performance washing machine foot pad sizing material
Using the modified method of rubber and plastic a certain proportion of high styrene resin (HSR) is added, in nitrile rubber to change in research direction
The processing performance of kind sizing material, improves the intensity, hardness and wearability of sizing material.Publication date is the Chinese patent on the 2nd of September in 2015
Disclosed in 201510232207.6 it is a kind of in automobile buffer supporting member rubber, the rubber product include nitrile rubber,
The use of high styrene rubber and other auxiliary agents, nitrile rubber improves the oil resistivity of rubber, and high styrene rubber significantly improves
The hardness of rubber, preferably ensure that rubber product in the case where loading is not high, the performance with high rigidity.On although
The method that scheme uses rubber and plastic is stated, the hardness of sizing material can be improved to a certain extent and reduce the Mooney viscosity of sizing material,
But consequent is that the compression set of sizing material increases, the resilience decline of sizing material, and the compression for being unable to satisfy product is permanent
Deformation requirements.
Summary of the invention
1. to solve the problems, such as
For existing nitrile rubber, there are difficult between the hardness of sizing material, Mooney viscosity and compression set amount
To take into account, and then brings high rigidity sizing material the easy incipient scorch of sizing material, difficult forming, sizing material difficultly flow into die cavity etc. and add in process of production
Work production is difficult and production efficiency and the low problem of product qualification rate, the present invention provide a kind of nitrile rubber, the present invention
By reasonably selecting the component of rubber material, in conjunction with preparation method provided by the invention, the rubber prepared is both able to satisfy height
The requirement of hardness, low compression set has low mooney viscosity characteristic again simultaneously.
2. technical solution
To solve the above-mentioned problems, the technical solution adopted in the present invention is as follows:
A kind of nitrile rubber, consists of the following components in percentage by mass:
Further, the mass percent of the high styrene rubber S6H component is 7%.
Further, the mass percent of I component of oligomer ester 12- is 4%.
The preparation method of above-mentioned nitrile rubber, comprising the following steps:
(1) masterbatch mix
Low Mooney nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer in proportion and plasticate 60~90
Second rises bolt cleaning, is then proportionally added into zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling
Agent KH-845-4, activating agent PEG-4000, oligomer ester 12- I rise bolt after being kneaded 60~90 seconds and clean, and precipitated calcium carbonate and increasing is added
Mould agent TP95 be kneaded 80~100 seconds after rise bolt clean, pressure floating weight 90~100 seconds after rise bolt clean, again press floating weight 60~
Bolt dumping is risen after 80 seconds, is parked.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
The tasteless DCP of agent DTDM, vulcanizing agent, accelerant CZ, promotor TT, to compounding agent (the i.e. tasteless DCP of vulcanizing agent DTDM, vulcanizing agent, rush
It all is mixed into operate on after masterbatch into agent CZ and promotor TT) and turn refining, slice.
Further, the dump temperature of the masterbatch is 130~140 DEG C.
Further, the storage period of the masterbatch is greater than 24 hours.
Further, the step that turns refining is to make a call to 2~3 triangle bags and 2 volumes.
3. beneficial effect
Compared with the prior art, the invention has the benefit that
(1) formula of a kind of nitrile rubber provided by the invention, using low Mooney nitrile rubber and with a small amount of high benzene second
Alkene rubber S6H joined oligomer ester 12- I, the addition together of three, so that nitrile rubber of the invention has simultaneously simultaneously
The characteristic that sizing material hardness is high, Mooney viscosity is low, compression set is small, makes sizing material possess good mobility, can overcome in life
It easily causes sizing material incipient scorch, difficult forming, sizing material to difficultly flow into the processing difficult problem such as die cavity during producing, substantially increases
Production efficiency and product qualification rate, reduce production cost, can bring apparent economic results in society.
(2) formula of a kind of nitrile rubber of the invention, high styrene rubber S6H, cost be far below butyronitrile
Rubber, and manufacturing technique requirent is not only met with the rubber, while reducing production cost again, substantially increase product competition
Power brings apparent economic benefit to enterprise.
(3) present invention can not only be applied to household electrical appliances shock-absorbing support rubber parts, while also can be widely applied to relevant device
Shock-absorbing support rubber parts field.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is further described below combined with specific embodiments below, is needed
To illustrate that these embodiments are only used for the range that the present invention will be described is not intended to limit the present invention.
Comparative example 1
Specific formula used by this comparative example 1 includes each component of following mass percentage described in table 1.
Each component and its mass percentage in 1 comparative example 1 of table formula
Preparation method used by this comparative example 1, comprising the following steps:
(1) masterbatch mix
Low Mooney nitrile rubber 1052M30 is placed in mixer to plasticate 60 seconds and rises bolt cleaning, zinc oxide, hard is then added
Resin acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent KH-845-4, activating agent PEG-4000 are kneaded 75 seconds
Bolt is risen afterwards to clean, and precipitated calcium carbonate is added and liter bolt cleans after plasticizer TP95 mixing 90 seconds, pressure rises bolt after floating weight 95 seconds clear
It sweeps, bolt dumping is risen after pressing floating weight 70 seconds again, masterbatch dump temperature is 135 DEG C.
The masterbatch storage period after mixing is 26 hours, makes mutually sufficiently to be soaked between nitrile rubber and each compounding agent
Profit makes rubber compound dispersion more evenly, and properties of rubber is more stable.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
Agent DTDM, accelerant CZ, promotor TT, sulphur, to compounding agent (i.e. vulcanizing agent DTDM, accelerant CZ and promotor TT, sulphur)
All be mixed into operate on after masterbatch and turn refining, by sizing material make a call to 3 triangle bags and 2 roll up after slice.
Comparative example 2
Specific formula used by this comparative example 2 includes each component of following mass percentage described in table 2.
Each component and its mass percentage in 2 comparative example 2 of table formula
High styrene rubber S6H Specifeca tion speeification in this comparative example 2 has: the monomer ratio of phenylethylene/butadiene is
82.5/17.5, softening temperature >=45 DEG C, ash content≤0.5%, supplier are Shanghai Pin Sheng Chemical Co., Ltd.s.It is subsequent all
High styrene rubber S6H used in comparative example and embodiment is identical as this comparative example 2.
Preparation method used by this comparative example 2, the steps include:
(1) masterbatch mix
In proportion low Mooney nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer to plasticate 80 seconds and be risen
Bolt cleans, and zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent KH-845- is then added
4, it is clear that bolt is risen after activating agent PEG-4000 is kneaded 75 seconds to clean, precipitated calcium carbonate is added and rises bolt after plasticizer TP95 mixing 90 seconds
It sweeps, pressure rises bolt and cleans after floating weight 95 seconds, bolt dumping is risen after pressing floating weight 70 seconds again, and masterbatch dump temperature is 135 DEG C.
The masterbatch storage period after mixing is 26 hours, makes mutually sufficiently to be soaked between nitrile rubber and each compounding agent
Profit makes rubber compound dispersion more evenly, and properties of rubber is more stable.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
Agent DTDM, accelerant CZ, promotor TT, sulphur, to compounding agent (i.e. vulcanizing agent DTDM, accelerant CZ and promotor TT, sulphur)
All be mixed into operate on after masterbatch and turn refining, by sizing material make a call to 3 triangle bags and 2 roll up after slice.
Comparative example 3
Specific formula used by this comparative example 3 includes each component of following mass percentage described in table 2.
Each component and its mass percentage in 3 comparative example 3 of table formula
I Specifeca tion speeification of oligomer ester 12- in this comparative example 3 has: solid part >=75%, acid value≤80mgKOH/g, supplies
The Xi'an Ying Shangshi Organic Chemical Plant.Oligomer ester 12- I used in subsequent all embodiments is identical as this comparative example 3.
Preparation method used by this comparative example 3, the steps include:
(1) masterbatch mix
Nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer plasticate 90 seconds rise bolt cleaning, then plus
Enter zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent KH-845-4, activating agent PEG-
4000, it is clear that bolt is risen after oligomer ester 12- I is kneaded 90 seconds to clean, precipitated calcium carbonate is added and rises bolt after plasticizer TP95 mixing 100 seconds
It sweeps, pressure rises bolt and cleans after floating weight 90 seconds, bolt dumping is risen after pressing floating weight 80 seconds again, and masterbatch dump temperature is 140 DEG C.
The masterbatch storage period after mixing is 28 hours, makes mutually sufficiently to be soaked between nitrile rubber and each compounding agent
Profit makes rubber compound dispersion more evenly, and properties of rubber is stablized.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
The tasteless DCP of agent DTDM, vulcanizing agent, accelerant CZ, promotor TT, to compounding agent (the i.e. tasteless DCP of vulcanizing agent DTDM, vulcanizing agent, rush
All be mixed into operate on after masterbatch and turn refining into agent CZ and promotor TT), by sizing material make a call to 3 triangle bags and 2 roll up after slice.
Embodiment 1
A kind of nitrile rubber of the present embodiment 1, is grouped as by the group of following mass percentage, is shown in Table 4.
The component and mass percentage of 4 nitrile rubber of table
A kind of preparation method of nitrile rubber of the present embodiment 1, the steps include:
(1) masterbatch mix
In proportion low Mooney nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer to plasticate 60 seconds and be risen
Bolt cleans, and zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent KH-845- is then added
4, bolt is risen after activating agent PEG-4000, oligomer ester 12- I are kneaded 75 seconds to clean, and precipitated calcium carbonate is added and plasticizer TP95 is kneaded
It rises bolt after 90 seconds to clean, pressure rises bolt and cleans after floating weight 95 seconds, rise bolt dumping, masterbatch dumping temperature after pressing floating weight 70 seconds again
Degree is 135 DEG C.
The masterbatch storage period after mixing is 26 hours, makes mutually sufficiently to be soaked between nitrile rubber and each compounding agent
Profit, intermolecular combination generate synergistic effect, make rubber compound dispersion more evenly, properties of rubber is more stable.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
The tasteless DCP of agent DTDM, vulcanizing agent, accelerant CZ, promotor TT, to compounding agent (the i.e. tasteless DCP of vulcanizing agent DTDM, vulcanizing agent, rush
All be mixed into operate on after masterbatch and turn refining into agent CZ and promotor TT), by sizing material make a call to 3 triangle bags and 2 roll up after slice；
The performance of nitrile rubber made from the present embodiment 1 is as shown in table 5.
5 nitrile rubber the performance test results of table
Note: material standard is BSH company standard LV27 A-D
According to data in table it is found that only with the sizing material of low Mooney nitrile rubber, when 83 degree of hardness, door in comparative example 1
Buddhist nun's viscosity has been up to 142, can not produce at all, uses low Mooney nitrile rubber and high styrene rubber S6H simultaneously in comparative example 2
With, white carbon black dosage is reduced, although decreasing to a certain extent compared with the sizing material Mooney viscosity of comparative example 1, sizing material hardness
Meet material performance requirement with compression set, but sizing material Mooney viscosity or higher, batch production is difficult, production efficiency and
Product qualification rate is low, uses low Mooney nitrile rubber, high styrene rubber S6H and I three of oligomer ester 12- simultaneously in comparative example 3
With the ratio of high styrene rubber S6H and oligomer ester 12- I are 3.9% and 7.7% respectively, although the sizing material Mooney viscosity
Reduce, but compression set increases, and since I dosage of oligomer ester 12- is up to 7.7%, cause to generate when rubber compounding gel and
Sizing material roll banding serious phenomenon is kneaded it and adds sulphur difficult with heat refining, and technological feasibility is poor.Only when low Mooney nitrile rubber, height
Styrene rubber S6H and I three of oligomer ester 12- are used in combination, and when using mass percent of the present invention, such as embodiment 1,
It could be not only able to satisfy material property, but also be able to satisfy technological operation performance.
If only and with high styrene rubber S6H, although sizing material Mooney viscosity decreases, sizing material hardness and compression in formula
Permanent deformation meets the requirements, but sizing material Mooney viscosity still can not meet technique requirement, and batch production is difficult, production efficiency and production
Product qualification rate is low, if increase S6H dosage and be greater than mass percent of the present invention, although the Mooney viscosity of sizing material meets
Standard requirements, but consequent is the compression set increase of sizing material, and the resilience decline of sizing material is unable to satisfy product
Compression set performance and sizing material tack difference easily causes sizing material roll release phenomenon；Oligomer ester 12- I is added in formula, can drop
Heat big problem when low rubber compounding, is substantially reduced sizing material Mooney viscosity, and sizing material has good mobility, its characteristic
The role for exactly playing the part of plasticizer during rubber compounding, reduces the Mooney viscosity of sizing material, with the technique for meeting batch production
It is required that while it in sulfidation again play the role of crosslinking agent, with raw rubber formed space net structure, this is conducive to compress
Be permanently deformed performance, if oligomer ester 12- I is added merely, when dosage is greater than mass percent of the present invention, although sizing material
Good fluidity, Mooney viscosity is low, but easily causes the phenomenon that generation gel and slice and heat refining add sulphur roll banding serious when rubber compounding,
It can not even operate at all on a mill, and product is also easy to produce bubble.
The present invention simultaneously and uses high styrene rubber S6H and oligomer ester 12- I, and exclusive use bring both can be overcome to ask
Topic, the two and with can mutually make up its defect, therefore, according to the present invention by reasonably select high styrene rubber S6H and together
Polyester 12- I is preferably and with mass percent, and in conjunction with preparation method provided by the invention, the rubber material prepared can
Meet the characteristic of high rigidity, low compression set, low mooney viscosity, while being able to satisfy the technique requirement of batch production again.
Embodiment 2
A kind of nitrile rubber of the present embodiment 2, is grouped as by the group of following mass percentage, is shown in Table 6.
The component and mass percentage of 6 nitrile rubber of table
A kind of preparation method of nitrile rubber of the present embodiment 2, the steps include:
(1) masterbatch mix
Nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer plasticate 75 seconds rise bolt cleaning, then plus
Enter zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent KH-845-4, activating agent PEG-
4000, it is clear that bolt is risen after oligomer ester 12- I is kneaded 60 seconds to clean, precipitated calcium carbonate is added and rises bolt after plasticizer TP95 mixing 80 seconds
It sweeps, pressure rises bolt and cleans after floating weight 100 seconds, bolt dumping is risen after pressing floating weight 60 seconds again, and masterbatch dump temperature is 130 DEG C.
The masterbatch storage period after mixing is 25 hours, makes mutually sufficiently to be soaked between nitrile rubber and each compounding agent
Profit, intermolecular combination generate synergistic effect, make rubber compound dispersion more evenly, properties of rubber is stablized.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
The tasteless DCP of agent DTDM, vulcanizing agent, accelerant CZ, promotor TT, to compounding agent (the i.e. tasteless DCP of vulcanizing agent DTDM, vulcanizing agent, rush
All be mixed into operate on after masterbatch and turn refining into agent CZ and promotor TT), by sizing material make a call to 2 triangle bags and 2 roll up after slice.
The performance of nitrile rubber made from the present embodiment 2 is as shown in table 7.
7 nitrile rubber the performance test results of table
Note: material standard is BSH company standard LV27 A-D
According to data in table it is found that the present embodiment 2, which prepares resulting nitrile rubber the performance test results, meets BSH enterprise
Industry standard LV27 A-D, compared with 5 data of table in embodiment 1, sizing material hardness is slightly higher, and Mooney viscosity is slightly lower.
Embodiment 3
A kind of nitrile rubber of the present embodiment 3, is grouped as by the group of following mass percentage, is shown in Table 8.
The component and mass percentage of 8 nitrile rubber of table
A kind of preparation method of nitrile rubber of the present embodiment 3, the steps include:
(1) masterbatch mix
Nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer plasticate 90 seconds rise bolt cleaning, then plus
Enter zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent KH-845-4, activating agent PEG-
4000, it is clear that bolt is risen after oligomer ester 12- I is kneaded 90 seconds to clean, precipitated calcium carbonate is added and rises bolt after plasticizer TP95 mixing 100 seconds
It sweeps, pressure rises bolt and cleans after floating weight 90 seconds, bolt dumping is risen after pressing floating weight 80 seconds again, and masterbatch dump temperature is 140 DEG C.
The masterbatch storage period after mixing is 28 hours, makes mutually sufficiently to be soaked between nitrile rubber and each compounding agent
Profit, intermolecular combination generate synergistic effect, make rubber compound dispersion more evenly, properties of rubber is stablized.
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanization is added
The tasteless DCP of agent DTDM, vulcanizing agent, accelerant CZ, promotor TT, to compounding agent (the i.e. tasteless DCP of vulcanizing agent DTDM, vulcanizing agent, rush
All be mixed into operate on after masterbatch and turn refining into agent CZ and promotor TT), by sizing material make a call to 3 triangle bags and 2 roll up after slice.
The performance of nitrile rubber made from the present embodiment 3 is as shown in table 9.
9 nitrile rubber the performance test results of table
Note: material standard is BSH company standard LV27 A-D
According to data in table it is found that the present embodiment 3, which prepares resulting nitrile rubber the performance test results, meets BSH enterprise
Industry standard LV27 A-D, compared with 5 data of table in embodiment 1, sizing material hardness is slightly lower, and Mooney viscosity is slightly higher.
Embodiment 4
A kind of nitrile rubber of the present embodiment 4, is grouped as by the group of following mass percentage:
The component and mass percentage of 10 nitrile rubber of table
The preparation method and its procedure parameter of the present embodiment 4 prepare resulting nitrile rubber performance and survey with embodiment 1
Test result is close with the data of embodiment 1 in table 5, meets BSH company standard LV27 A-D.
Claims (6)
1. a kind of nitrile rubber, which is characterized in that consist of the following components in percentage by mass:
Low Mooney nitrile rubber 1,052,M30 33.0~38.0, high styrene rubber S6H 5.0~10.0, oligomer ester 12- I 3.0
~5.0, white carbon black 20.0~25.0, precipitated calcium carbonate 12.0~15.0, titanium dioxide 4.0~5.0, zinc oxide 2.0~3.0, firmly
Resin acid 0.4~0.8, antioxidant 2246 0.3~0.6, antioxidant MB 0.3~0.6, coupling agent KH-845-4 1.2~1.5 are living
Property agent PEG-4000 1.2~1.5, vulcanizing agent DTDM 0.8~1.2, the tasteless DCP 0.2~0.4 of vulcanizing agent, promotor TT 0.3
~0.6, accelerant CZ 0.1~0.3, plasticizer TP95 4.0~5.0；The wherein matter of the high styrene rubber S6H component
Measuring percentage is 7%.
2. a kind of nitrile rubber according to claim 1, which is characterized in that the matter of I component of oligomer ester 12-
Measuring percentage is 4%.
3. a kind of preparation method of nitrile rubber as described in claim 1, comprising the following steps:
(1) masterbatch mix
In proportion low Mooney nitrile rubber 1052M30 and high styrene rubber S6H are placed in mixer to plasticate 60~90 seconds and be risen
Bolt cleans, and is then proportionally added into zinc oxide, stearic acid, antioxidant 2246, antioxidant MB, white carbon black, titanium dioxide, coupling agent
KH-845-4, activating agent PEG-4000, oligomer ester 12- I rise bolt after being kneaded 60~90 seconds and clean, and precipitated calcium carbonate and plasticising is added
Agent TP95 rises bolt after being kneaded 80~100 seconds and cleans, and pressure rises bolt and cleans after floating weight 90~100 seconds, presses floating weight 60~80 again
Bolt dumping is risen after second, is parked；
(2) two sections of masterbatch plus sulphur
Masterbatch after parking is placed on mill mixer roller, after masterbatch packet roller surface is smooth, vulcanizing agent is added
The tasteless DCP of DTDM, vulcanizing agent, accelerant CZ, promotor TT, vulcanizing agent to be added and promotor are opened after being all mixed into masterbatch
Knife turns refining, slice.
4. a kind of preparation method of nitrile rubber according to claim 3, which is characterized in that the row of the masterbatch
Glue temperature is 130~140 DEG C.
5. a kind of preparation method of nitrile rubber according to claim 3, which is characterized in that the masterbatch stops
The time is put greater than 24 hours.
6. a kind of preparation method of nitrile rubber according to claim 3, which is characterized in that the step that turns refining is
Make a call to 2~3 triangle bags and 2 volumes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470185.6A CN107118409B (en) | 2017-06-20 | 2017-06-20 | A kind of nitrile rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710470185.6A CN107118409B (en) | 2017-06-20 | 2017-06-20 | A kind of nitrile rubber and preparation method thereof |
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| CN102702588A (en) * | 2012-06-20 | 2012-10-03 | 西安汉华橡胶科技有限公司 | Damping rubber material with low hardness, high-temperature static torque and good durability and preparation method thereof |
| CN104140578A (en) * | 2014-08-12 | 2014-11-12 | 马鞍山市天鑫辊业有限责任公司 | High-styrene resin rubber roller and preparation method thereof |
| CN104877195A (en) * | 2015-05-08 | 2015-09-02 | 柳州日高橡胶制品有限责任公司 | Rubber for buffering supporting piece in automobile |
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| CN102702588A (en) * | 2012-06-20 | 2012-10-03 | 西安汉华橡胶科技有限公司 | Damping rubber material with low hardness, high-temperature static torque and good durability and preparation method thereof |
| CN104140578A (en) * | 2014-08-12 | 2014-11-12 | 马鞍山市天鑫辊业有限责任公司 | High-styrene resin rubber roller and preparation method thereof |
| CN104877195A (en) * | 2015-05-08 | 2015-09-02 | 柳州日高橡胶制品有限责任公司 | Rubber for buffering supporting piece in automobile |
Non-Patent Citations (1)
| Title |
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| 橡塑型洗衣机脚垫胶料的配方设计;赵桂英 等;《吉林化工学院学报》;20140131;第31卷(第1期);第66-69页 |
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